BMW Cooling System Parts & Accessories for BMW 5 Series E39 (1996-2003)

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The cooling system is arguably the weakest point in numerous BMWs. If you drive an aging BMW or plan on taking your car to the track like we do, we recommend beefing up your cooling system before going to the track. Generally, the main components in your cooling system that are prone to failure include the following: expansion tank, factory hoses, water pump, thermostat, fan (especially if your vehicle comes factory with a clutch fan), and radiator. Factory BMW expansion tanks are plastic and prone to either breaking off at connection points or combusting. As factory rubber hoses age they either crack or break over time - we offer silicone cooling hose upgrades for most applications to avoid future failures. If you have an older vehicle, your water pump likely comes from the factory with a plastic impeller - we offer upgraded water pumps with metal impellers that are far more reliable. Newer model BMWs utilize electric water pumps - BMW spent millions of dollars engineering these water pumps, but they fail so often that we recommend replacing at 60,000 mile service intervals to avoid being stranded on the side of the road. In terms of thermostats, we offer various upgraded thermostats for racing applications. If your BMW utilizes a clutch fan from the factory, we have several options available in terms of universal electric fans - we recommend replacing these to avoid sending brittle plastic fan blades through your hood. For radiators, we recommend swapping out your radiator for one that does not use plastic connection points like your factory radiator.

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Schwaben - Corporate Logo
T#:375872
Part#: 001170SCH01AKT
In Stock
Sale - Save 25% $ 65.99

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$ 49.49 USD
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Sale - Save 25%
$ 65.99

This product was last offered at the strikethrough price on
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$ 49.49 USD
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Replacing the fan clutch on most BMW models requires holding the water pump pulley while removing the fan clutch lock nut. With less than 1 1/2" clearance on some models this project can easily turn into a mechanical nightmare. Using our special slim line fan clutch wrench in conjunction with the appropriate pulley spanner, the removal and installation required only a few moments.
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Coolant Temperature Sensor
Located on the water pump housing For vehicles with production date from 09/1998
Meistersatz - Corporate Logo
T#:379617
Part#: 13621703993
In Stock
$ 25.99 USD
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$ 25.99 USD
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Febi Radiator Hose - Lower - E39
For vehicles with production date from 09/1998
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:4474
Part#: 11531705224
In Stock
$ 53.99

This product was last offered at the strikethrough price on
05-02-2026

$ 42.99 USD
Limited Qty Sale
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$ 53.99

This product was last offered at the strikethrough price on
05-02-2026

$ 42.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
This coolant hose goes from the lower radiator to the water pump. This hose has a temperature sensor in it. (sold separately- see below).

This item fits the following BMWs:
1999-2003 E39 BMW 525i 528i 530i
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Rein - Corporate Logo
T#:379680
Part#: 11531710055
In Stock
$ 2.03 USD
Free Shipping on orders $49 and up
When it comes time to replace the water pump, be sure to replace all the O-Rings associated with it to ensure that your car stays leak free. If you are experiencing leaking issues, be sure to inspect these rings, as they might have worn down. This specific ring is used when replacing water pump on cooling pipe to the water accumulator. There are two per car.
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Rein Expansion Tank Hose - E39
For vehicles with production date from 09/1998
Rein - Corporate Logo
T#:375748
Part#: 11531438633
Ships in 2 Business Days
$ 18.99 USD
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$ 18.99 USD
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Runs from the expansion tank to auxiliary water pump
Geba Water Pump - M62
For vehicles with production date from 09/1998
Geba - Corporate Logo
T#:341091
Part#: 11510393336
In Stock
$ 99.99 USD
Free Shipping
$ 99.99 USD
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Prevent cooling system failure today and replace your water pump!

Genuine BMW Coolant Hose - E52 Z8 E39 540i
For vehicles with manual transmission and production date from 09/1998
Genuine BMW - Corporate Logo
T#:367677
Part#: 11531711377
In Stock
$ 43.99 USD
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$ 43.99 USD
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Genuine BMW - Corporate Logo
T#:623
Part#: 11517527799
Ships in 1-2 days
6% off MSRP $ 254.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 239.99 USD
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6% off MSRP
$ 254.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 239.99 USD
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The early M50/M52 engines had a serious weak point: the water pump. BMW originally used a plastic impeller in the water pump. This would degrade over time and eventually break apart. Your car overheats immediately. This water pump is the latest updated part with a composite impeller. The composite is stronger and lighter than the less-expensive metal impeller version. And it does not suffer from the problems of the early plastic design.

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

This waterpump fits the following BMWs:
1992-1999 E36 3 series - 323is, 323ic, 325i, 325is, 325ic, 328i, 328ic, M3 3.0 (S50/US), M3 3.2 (S52)
1991-1995 E34 BMW 525i
1997-1998 E39 5 series - 528i
1996-1998 Z3 - Z3 2.8,
1998-2000 Z3 Roadster/Coupe - M Roadster, M Coupe (S52)
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Packaged by Turner - Corporate Logo
T#:557233
Part#: E39540BCKT2
Ships in 1-2 days
Sale - Save 13% $ 389.99

This product was last offered at the strikethrough price on
05-03-2026

$ 340.78 USD
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Sale - Save 13%
$ 389.99

This product was last offered at the strikethrough price on
05-03-2026

$ 340.78 USD
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Just like the rest of your vehicle's major systems, the cooling system must also be addressed periodically to ensure proper cooling and component reliability. Plastic and rubber components become brittle and prone to splitting or cracking after long periods of heating and cooling cycles, especially in colder climates! The coolant itself can degrade or become contaminated, leading to potential corrosion or freezing issues. Finally, thermostats and sensors can fail completely, preventing proper cooling and/or coolant temperature readings to become inaccurate.

To make sure you are not left stranded on the side of the road with an overheated engine, we have put together this Basic Cooling System Service kit. This kit contains all of the most-likely-to-fail components, giving you peace of mind knowing your engine will continue to run cool for another 60,000+ miles.

See kit contents below for all included components.

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Spal - Corporate Logo
T#:376582
Part#: 30102049
In Stock
$ 207.99 USD
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$ 207.99 USD
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For BMW owners seeking enhanced airflow or tighter engine compartment clearance, Turner Motorsport presents a Universal Fan. Ideal for applications like aftermarket turbo setups, this fan ensures optimal cooling performance. Please note that this fan is universal and may require modification to fit your specific application. Crafted in Italy, this fan boasts dimensions of 16.30in x 15.75in x 3.47in and provides an airflow of 2024 CFM.

  • Enhanced airflow for improved engine cooling
  • Ideal for applications with tight tolerances, such as aftermarket turbo setups
  • Universal design allows for versatile installation
  • Crafted in Italy for quality assurance
  • Compact size with powerful airflow capacity
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Genuine BMW - Corporate Logo
T#:360668
Part#: 11531436386
In Stock
3% off MSRP $ 200.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 193.99 USD
Free Shipping
3% off MSRP
$ 200.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 193.99 USD
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Don't take chances! Proper maintenance is required to keep your BMW performing at peak levels. The thermostat basically controls when your car will overheat. The sensor on the housing is also used by the engine computer to set the fuel mapping on the engine. A faulty sensor or thermostat will lead to the engine running rich (too much fuel). This thermostat fits BMW E39 540i 99-03 E38 740i 99-01 X5 4.4i 4.6is 99-2003 with M62 engine. 

This item fits the following BMWs: 
1999-2001  E38 BMW  740i 740il 
1999-2003  E39 BMW  540i 
1999-2003  E53 BMW  X5 4.4i X5 4.6is

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Coolant Level Sensor
For vehicles with production date up to 09/1998
URO - Corporate Logo
T#:379491
Part#: 61318360855
Ships in 2 Business Days
$ 12.99 USD
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$ 12.99 USD
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Monitors the coolant level in the expansion tank


Mishimoto - Corporate Logo
T#:637388
Part#: MMFAN-12C
Ships in 4 Business Days
$ 96.99 USD
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$ 96.99 USD
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BMW Mishimoto 12" Universal Curved Blade Electrical Fan

The BMW Mishimoto 12" Universal Curved Blade Electrical Fan is an ideal upgrade for enhancing cooling efficiency or addressing fitment issues with aftermarket components. Turner Motorsport offers this fan with a slim profile that allows for easy installation flush against the radiator, ensuring optimal performance and space utilization.

Benefits:

  • High-Flow Performance: Delivers 1150 CFM of airflow for superior cooling efficiency.
  • Universal Fitment: Designed to fit a wide range of vehicles and applications.
  • Compact Design: With a diameter of 12" and an overall thickness of just 2.5", it increases engine bay space and allows for flexible installation.
  • Versatile Operation: Easily reversible for use as either a pusher or puller fan.
  • Mishimoto Lifetime Warranty: Backed by Mishimoto's lifetime warranty for peace of mind.
  • Prop 65 Warning: Note that Proposition 65 may apply to this product. For more information, visit www.P65Warnings.ca.gov.
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URO - Corporate Logo
T#:377294
Part#: 11531710055
In Stock
$ 1.01 USD
Free Shipping on orders $49 and up
When it comes time to replace the water pump, be sure to replace all the O-Rings associated with it to ensure that your car stays leak free. If you are experiencing leaking issues, be sure to inspect these rings, as they might have worn down. This specific ring is used when replacing water pump on cooling pipe to the water accumulator. There are two per car.
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Genuine BMW - Corporate Logo
T#:153200
Part#: 65128368216
In Stock
8% off MSRP $ 25.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 23.99 USD
Free Shipping on orders $49 and up
8% off MSRP
$ 25.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 23.99 USD
Free Shipping on orders $49 and up


Genuine BMW Bracket F On Bord Monitor Radio
This item fits the following BMW Chassis:
E39 M5,E39


Genuine BMW - Corporate Logo
T#:360966
Part#: 61318360876
Ships in 1-2 days
2% off MSRP $ 92.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 90.99 USD
Free Shipping on orders $49 and up
2% off MSRP
$ 92.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 90.99 USD
Free Shipping on orders $49 and up
Packaged by Turner - Corporate Logo
T#:557232
Part#: E39M5XBCKT
In Stock
Sale - Save 9% $ 352.99

This product was last offered at the strikethrough price on
05-03-2026

$ 320.26 USD
Free Shipping
Sale - Save 9%
$ 352.99

This product was last offered at the strikethrough price on
05-03-2026

$ 320.26 USD
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Just like the rest of your vehicle's major systems, the cooling system must also be addressed periodically to ensure proper cooling and component reliability. Plastic and rubber components become brittle and prone to splitting or cracking after long periods of heating and cooling cycles, especially in colder climates! The coolant itself can degrade or become contaminated, leading to potential corrosion or freezing issues. Finally, thermostats and sensors can fail completely, preventing proper cooling and/or coolant temperature readings to become inaccurate.

To make sure you are not left stranded on the side of the road with an overheated engine, we have put together this Basic Cooling System Service kit. This kit contains all of the most-likely-to-fail components, giving you peace of mind knowing your engine will continue to run cool for another 60,000+ miles.

See kit contents below for all included components.

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Rein - Corporate Logo
T#:591959
Part#: 17111741167
Ships in 2 Business Days
$ 69.99 USD
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$ 69.99 USD
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Plastic has a limited lifespan - replace every 80,000 miles
URO - Corporate Logo
T#:34080697
Part#: 11531705210
Ships in 2 Business Days
$ 34.49

This product was last offered at the strikethrough price on
08-12-2026

$ 34.47 USD
Free Shipping on orders $49 and up
$ 34.47 USD
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This runs from the front left side of the cylinder head under the intake manifold toward the firewall.

Genuine BMW Radiator Hose - Lower - E39 525i 528i 530i
For vehicles with production date from 09/1998
Genuine BMW - Corporate Logo
T#:360673
Part#: 11531705224
In Stock
$ 55.99 USD
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$ 55.99 USD
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Genuine BMW - Corporate Logo
T#:45775
Part#: 17111737713
In Stock
11% off MSRP $ 25.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 23.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
11% off MSRP
$ 25.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 23.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up


Genuine BMW Rubber Strip - L=621mm
This item fits the following BMW Chassis:
E39 M5,E38,E39

Fits BMW Engines including:
M52,M54,M60,M62,M73,M73N,S62

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Spal - Corporate Logo
T#:598801
Part#: 30100375
Back Ordered
$ 99.99 USD
Free Shipping
$ 99.99 USD
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861 CFM. High performance puller fan with straight blades. This is a universal fan for applications that require more air flow or for engine compartments that have tight tolerances such as an aftermarket turbo set up that needs more clearance. This fan is universal and you must make it fit your application. It is not a direct bolt on. Made in Italy. Size: 13.25in x 12.5in x 2.2in Airflow (CFM): 861
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Rein - Corporate Logo
T#:375756
Part#: 11531741404
In Stock
$ 8.45 USD
Free Shipping on orders $49 and up
Connects the expansion tank to the radiator


Facet Coolant Temperature Sensor - E38, E39
For vehicles with production date up to 09/1998
Facet - Corporate Logo
T#:2170
Part#: 61318360857
Back Ordered
$ 31.70

This product was last offered at the strikethrough price on
08-11-2026

$ 29.61 USD
Free Shipping on orders $49 and up
$ 29.61 USD
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Engine radiator double temperature fan switch, 91/104 degree celsius. This switch is designed to activate the auxiliary fan at the specified temperatures.

This item fits the following BMWs:
1997-1998 E39 BMW 528i 540i
1995-1998 E38 BMW 740i 740il
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Mishimoto - Corporate Logo
T#:637389
Part#: MMFAN-14C
In Stock
$ 104.99 USD
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$ 104.99 USD
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This curved blade fan can be used as an upgrade to the OEM fan for more efficient cooling or fitment issues with aftermarket products. With its slim design, the fan can easily be installed flush against a radiator. For universal installation, use Mishimoto universal fan mount kit, T#363171. Features: High-flow curved blade fan provides 1300 CFM of airflow Universal fitment Compact design with a diameter of 14" and an overall thickness of only 2.65" provides increased engine bay space Mishimoto Lifetime Warranty WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.
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URO - Corporate Logo
T#:568703
Part#: 17217505823
Ships in 2 Business Days
$ 70.99 USD
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$ 70.99 USD
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The heat exchanger keeps your engine oil temperature at a safe level. Without it, oil temperatures could sky rocket causing shearing and potentially internal engine component failure.

URO - Corporate Logo
T#:362009
Part#: 17111741167
Ships in 2 Business Days
$ 49.99 USD
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Does not include level sensor and cap

Radiator Drain Plug
For vehicles with production date from 09/1998
URO - Corporate Logo
T#:577887
Part#: 17111712339
In Stock
$ 4.77 USD
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$ 4.77 USD
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These drain plugs are made of plastic and can be easily fatigued and cracked. Save your self the trouble of finding out too late, that yours is damaged and not usable.
Rein - Corporate Logo
T#:374352
Part#: 11531741409
In Stock
$ 17.99 USD
Free Shipping on orders $49 and up
This item fits the following BMWs:    
1997-1998   E39 BMW   540i  
1996-1998   E38 BMW   740i 740il 

Genuine BMW Thermostat - 92ºC
For vehicles with production date up to 09/1998
Genuine BMW - Corporate Logo
T#:360690
Part#: 11537511083
Ships in 1-2 days
3% off MSRP $ 107.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 104.99 USD
Free Shipping
3% off MSRP
$ 107.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 104.99 USD
Free Shipping
Meyle Expansion Tank Cap
We Price Match - Give Us A Call or Chat!
Meyle - Corporate Logo
T#:579357
Part#: 3148009004
In Stock
Sale - Save 40% $ 14.99

This product was last offered at the strikethrough price on
05-15-2026

$ 8.99 USD
Free Shipping on orders $49 and up
Sale - Save 40%
$ 14.99

This product was last offered at the strikethrough price on
05-15-2026

$ 8.99 USD
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Replace worn or missing pieces.

Genuine BMW - Corporate Logo
T#:376939
Part#: 17112229114KT
In Stock
$ 353.99 USD
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$ 353.99 USD
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Genuine BMW - Corporate Logo
T#:3026
Part#: 17112229114
In Stock
4% off MSRP $ 329.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 315.99 USD
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4% off MSRP
$ 329.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 315.99 USD
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This radiator expansion tank (coolant reservoir) is used on E39 M5 from 1999-2003. It is a common failure item. If you are overhauling your coolant system, now is the time to consider preventative replacing this expansion tank.

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

This item fits the following BMWs:
1999-2003 E39 BMW M5
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Victor Reinz - Corporate Logo
T#:362401
Part#: 11531710055
Ships in 9 Business Days
$ 2.99 USD
Free Shipping on orders $49 and up
Replace each time to work on your water pump
Mahle - Corporate Logo
T#:12476
Part#: 11537511083
Ships in 9 Business Days
$ 29.99

This product was last offered at the strikethrough price on
05-22-2026

$ 27.68 USD
Free Shipping on orders $49 and up
$ 27.68 USD
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OEM BMW THERMOSTAT:115040


Mishimoto - Corporate Logo
T#:381042
Part#: MMOC-19
In Stock
$ 218.99

This product was last offered at the strikethrough price on
05-06-2026

$ 196.99 USD
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$ 196.99 USD
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WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.
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Mishimoto - Corporate Logo
T#:19593926
Part#: MMOCULT
In Stock at Vendor
$ 599.99 USD
Free Shipping on orders $49 and up

Enhance your BMW's performance and protect its engine with this high-quality oil cooler kit

Even under ideal driving conditions, elevated oil temperatures can lead to decreased lubrication efficiency and pressure. With this oil cooler, you can maintain optimal oil temperatures for peak driving performance.

Kit Includes:

  • Four feet of stainless braided line for durability
  • Adapter fittings for easy installation
  • Oil filter sandwich adapter for seamless integration

Specifications:

  • Rows: 19
  • Overall Dimensions: 13" x 5.5" x 2"
  • Core Dimensions: 11.25" x 5.5" x 2"
  • Braided Hoses: 4ft .75 inch & 4ft 9 inch
  • Braided Hose Fittings: -10AN
  • Sandwich Plate Fittings: -10AN
  • Includes Thermostat for precise temperature and flow control

*WARNING: This product may be subject to Proposition 65 regulations in California. For more information, visit www.P65Warnings.ca.gov.

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Mishimoto - Corporate Logo
T#:378422
Part#: MMFAN14
In Stock
$ 100.99 USD
Free Shipping
$ 100.99 USD
Free Shipping
WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.
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Packaged by Turner - Corporate Logo
T#:30397440
Part#: 11517527799KT2
In Stock
$ 357.99

This product was last offered at the strikethrough price on
06-15-2026

$ 344.99 USD
Free Shipping on orders $49 and up
$ 344.99 USD
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BMW vehicles are known for their robust performance, but the water pump is a notorious weak spot, often needing replacement every 60,000 miles.

During this service, it's wise to also swap out the thermostat to maintain the efficiency of your vehicle's cooling system. Turner Motorsport simplifies this process with our expertly curated Water Pump & Thermostat Replacement Kit.

This premium kit centers around the renowned EMP Stewart high-performance water pump--a favorite among BMW enthusiasts for its exceptional design. Featuring a stainless steel impeller, this pump enhances coolant flow by 20%. Complementing this is a low-temperature 68°C (154.4°F) Mishimoto thermostat, an upgraded aluminum thermostat housing, and Redline Water Wetter coolant additive. Together, these components make for the ultimate cooling system upgrade for your E36, E39, or Z3!

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Mishimoto - Corporate Logo
T#:51075086
Part#: MMTS-E46-99E
In Stock
New Item
$ 91.99 USD
Free Shipping on orders $49 and up
The Mishimoto Thermostat Assembly focuses on precision fitment and long-term durability.
URO Parts Thermostat Assembly - 11537509227
For vehicles with production date from 09/1998
URO - Corporate Logo
T#:29466801
Part#: 11537509227
Ships in 2 Business Days
$ 41.99 USD
Free Shipping on orders $49 and up
$ 41.99 USD
Free Shipping on orders $49 and up

The thermostat cover in your BMW, made from plastic, is notorious for failing. After years of exposure to hot coolant, the plastic can crack, leading to significant coolant leaks and potential engine overheating.

URO Parts offers a superior solution with their high-quality thermostat cover, designed to surpass the durability of the original factory part. This replacement thermostat comes complete with a gasket for an effortless service.

Features:

Perfect Fit: Guaranteed fitment ensures a seamless replacement process. Optimal Cooling: High-flow OE-style design ensures efficient engine cooling performance. Easy Installation: Manufactured to factory housing dimensions for straightforward bolt-on installation and secure hose connections. Comprehensive Design: Includes ports for temperature sensors where applicable. Superior Materials: Constructed from high-quality alloy or composite materials that resist temperature-induced warping or cracking, preventing coolant leaks. URO Parts, with over 8,000 premium spare parts, specializes in manufacturing precise, durable replacements for factory BMW components. Committed to the highest standards of precision, materials, and workmanship, each part is rigorously tested to deliver the best combination of durability, functionality, and affordability. For reliable replacement parts that offer great value, choose URO Parts.

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Mahle-Behr Air Conditioning Fan - E39
For vehicles with production date up to 09/1998
Mahle-Behr - Corporate Logo
T#:384565
Part#: 64548380780
In Stock
$ 317.99

This product was last offered at the strikethrough price on
05-03-2026

$ 290.99 USD
Limited Qty Sale
Free Shipping
$ 317.99

This product was last offered at the strikethrough price on
05-03-2026

$ 290.99 USD
Limited Qty Sale
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Also known as "pusher fan"
Genuine BMW Thermostat With Housing - E39 540i
For vehicles with production date up to 09/1998
Genuine BMW - Corporate Logo
T#:360671
Part#: 11531437526
In Stock
8% off MSRP $ 193.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 177.99 USD
Limited Qty Sale
Free Shipping
8% off MSRP
$ 193.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 177.99 USD
Limited Qty Sale
Free Shipping

Don't take chances! Proper maintenance is required to keep your BMW performing at peak levels. The thermostat basically controls when your car will overheat. The sensor on the housing is also used by the engine computer to set the fuel mapping on the engine. A faulty sensor or thermostat will lead to the engine running rich (too much fuel).

This item fits the following BMWs: 
up to 09/1999  E38 BMW  740i 740il
up to 09/1999  E39 BMW  540i

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Febi Freeze Plug - 11111714712
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:6570
Part#: 11111714712
Ships in 1-2 days
$ 3.99

This product was last offered at the strikethrough price on
05-07-2026

$ 1.01 USD
Free Shipping on orders $49 and up
$ 1.01 USD
Free Shipping on orders $49 and up
ENGINE COVER LID 11111714712

Spal - Corporate Logo
T#:583648
Part#: 30100400
In Stock
$ 111.99 USD
Free Shipping
$ 111.99 USD
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Low profile design makes an easy fit when clearance is an issue. 1300 CFM.
Rein - Corporate Logo
T#:591144
Part#: 11531265084
In Stock
$ 2.05 USD
Free Shipping on orders $49 and up
This O-ring seals the thermostat to the cylinder head.
Mahle - Corporate Logo
T#:341209
Part#: 11537835558
In Stock at Vendor
$ 74.00

This product was last offered at the strikethrough price on
06-05-2026

$ 71.61 USD
Free Shipping on orders $49 and up
$ 71.61 USD
Free Shipping on orders $49 and up
Includes sealing o-ring


Mahle-Behr - Corporate Logo
T#:374303
Part#: 11527502804
Ships in 2 Business Days
$ 358.99 USD
Free Shipping
$ 358.99 USD
Free Shipping
This is the viscous fan clutch for the for the engine fan on M60/M62 V8 engines. When the engine is cool or even at normal operating temperature, the fan clutch partially disengages the engine's mechanically-driven radiator cooling fan. This saves power, since the engine does not have to fully drive the fan. If engine temperature rises above the clutch's engagement temperature setting, the fan becomes fully engaged, thus drawing a higher volume of ambient air through the vehicle's radiator, which in turn serves to maintain or lower the engine coolant temperature to an acceptable level.Typically, when the fan clutch fails the car with tend to overheat at idle or in slow moving traffic.

This item fits the following BMWs:
1993-1995  E34 BMW  530i 540i
1997-2003  E39 BMW  540i
1988-1994  E32 BMW  740i 740il 750il
1995-2001  E38 BMW  740i 740il 750il
1990-1999  E31 BMW  840i 840ci 850i 850ci 850csi
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Mahle-Behr - Corporate Logo
T#:341101
Part#: 17111723520
In Stock at Vendor
$ 97.62

This product was last offered at the strikethrough price on
05-03-2026

$ 77.22 USD
Free Shipping on orders $49 and up
$ 77.22 USD
Free Shipping on orders $49 and up
Hailing from Stuttgart, Mahle-Behr specializes in automotive cooling systems. From air conditioning to engine cooling M-B has you covered with OE-quality replacement parts.